{"instruction": "You are an expert in event argument extraction. Please extract event arguments and their roles from the input that conform to the schema definition, which already includes event trigger words. If an argument does not exist, return NAN or an empty dictionary. Please respond in the format of a JSON string.", "schema": [{"event_type": "data breach", "arguments": ["tool", "damage amount", "attack pattern", "place", "number of victim", "attacker", "number of data", "purpose"]}], "input": "A study by researchers at Google , Chainalysis , University of California San Diego and NYU Tandon School of Engineering estimated that from 2016 to mid 2017 , victims paid $ 25 million in ransom to get files back ."}
{"data breach": []}